晶振11.0592M
/**********************1602底层驱动程序***************************/ /********************************************************************/ //delay: 延时xms void delay(uint xms) { uchar i, j; for(i = 0; i < xms; i++) for(j = 0; j < 110; j++); } //wait: 判忙等待 void wait() { P0 = 0xff; do { RS = 0; RW = 1; EN = 0; EN = 1; }while(BUSY == 1); EN = 0; } //write:cmd 写入命令 void write_cmd(uchar cmd) { RS = 0; RW = 0; EN = 0; P0 = cmd; EN = 1; EN = 0; } //write:data写入数据 void write_data(uchar datas) { RS = 1; RW = 0; EN = 0; P0 = datas; EN = 1; EN = 0; } //send:string 发送一串字符 void send_string(uchar* str) { while(*str != '\0') { write_data(*str++); } } //lcd1602:init LCD1602 显示初始化 void lcd_init() { delay(15); write_cmd(0x38); delay(5); write_cmd(0x38); delay(5); write_cmd(0x38); wait(); write_cmd(0x38); //设置16 * 2,5 * 7点阵 wait(); write_cmd(0x08); wait(); write_cmd(0x01);//清屏 wait(); write_cmd(0x06); wait(); write_cmd(0x0c); //开显示 }
-电子元器件采购网（www.ruidan.com）是本土元器件目录分销商，采用“小批量、现货、样品”销售模式，致力于满足客户多型号、高质量、快速交付的采购需求。 自建高效智能仓储，拥有自营库存超过50,000种，提供一站式正品现货采购、个性化解决方案、选型替代等多元化服务。